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David John


Last seen: 20 days ago

MathWorks

17 total contributions since 2018

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Answered
I am getting wrong output voltage in ideal transformer , how can I fix this ?
Please try changing the "Max step size" in the "Model Settings" to something smaller so that it resolves your sine wave better. ...

19 days ago | 1

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Answered
How does simscape calculate the MOSFET gain factor from the datasheet values?
The gain is calculated by solving the Schichmann-Hodges equations for the gain given the Rds at a particular Vgs and Id. Specify...

2 months ago | 0

Answered
Power losses in Simscape Electrical
1) At this time, the Converter (Three-Phase) block does not support a thermal port, so yes, you would need to build it up out of...

2 months ago | 0

Answered
Diode Power losses in Simscape Electrical
For diode losses, we always include conduction losses. For switching losses, you need to use a model where "Charge dynamics" on ...

2 months ago | 0

Answered
Buck Converter Block (Simscape Eletrical) not working properly
You have grounded the G- node. If you are considering MOSFETs, this would correspond to the source terminal of the MOSFET. Try d...

2 months ago | 0

Answered
Parameterize mosfet model for SiC mosfet
There are a couple of options (and I'm assuming that you're using this device in a switching application...so no need to go all ...

6 months ago | 0

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Answered
How to get information about formulas used in getPowerLossSummary function?
Individual blocks in Simscape Electrical track their own losses via an internal power_dissipated variable. For many blocks, this...

9 months ago | 0

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Answered
Finding Rotor parameters in Asynchronous Machine Wound Rotor (Fundamental, SI)
Attach an Induction Machine Measurement block to the output terminal of the block and then select which quantity you would like ...

9 months ago | 0

Answered
Understanding "start simulation from steady state" option in solver block
If the box is unchecked, then the MOSFET may not be starting from a DC steady-state operating point. It could be starting from a...

9 months ago | 0

Answered
Is there a way to build a model like this lt spice model with simscape ?
No, it's not possible to do that at this time. You can, however, use subcircuit2ssc to make a single block out of your SPICE imp...

9 months ago | 0

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Answered
SPICE To Subsystem diagram
The subcircuit2ssc functionality is intended to translate a textual circuit representation (from a SPICE netlist) to a textual r...

9 months ago | 0

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Answered
SIMSCAPE INPUT FOR SOURCE CODE
The most straightforward way to do this is to write your own custom block using the open source code of the Controlled Voltage S...

9 months ago | 0

Answered
What do the C_param and RevBrk parameters mean for spice_diode ?
C_param is a flag indicating what type of capacitance model you want to use and RevBrk is a flag indicating what type of reverse...

9 months ago | 0

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Answered
Impedance vs Frequency Plot
Simscape solves in the time-domain, so you cannot directly do a frequency sweep. You can, however, linearize the model and then ...

2 years ago | 0

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Answered
Where should I take RLC branch in Matlab 2017 version?
If you are looking for the three-phase RLC block in Simscape Power Systems in 17a or 17b, please see Simscape Components/Passive...

2 years ago | 0

Answered
Electronics circuit diode simulation
The main mechanism that we have for flagging components going outside of a certain operating limit is by using the passive compo...

2 years ago | 0

Answered
PE Cable Ac Sheath bonding model - partially adjust cable model and simulate results
The example model assumes that the total cable length is equally distributed across each pi-section model. This is defined in th...

2 years ago | 0